X11 Xlib h not found in Ubuntu

Question

I m trying to write a rather trivial program using open gl on linux  but at a compile time it says      Compile thumb    egl  lt   cuberenderer c   In file included from    path include egl h 36                     from  path cuberenderer c 7     path include eglplatform h 89 22    error  X11 Xlib h  No such file or   directory    path include eglplatform h 90 23    error  X11 Xutil h  No such file or   directory   I m totally new to GL and have no idea what s wrong

User · Answer

Presume he s using the tutorial from http   www arcsynthesis org gltut  along with premake4 3  -       sudo apt-get install libx11-dev                   for X11 Xlib h   sudo apt-get install mesa-common-dev         for GL glx h   sudo apt-get install libglu1-mesa-dev       for GL glu h   sudo apt-get install libxrandr-dev             for X11 extensions Xrandr h   sudo apt-get install libxi-dev                     for X11 extensions XInput h     After which I could build glsdk 0 4 4 and examples without further issue

User · Answer

Why not try find  usr include X11 -name Xlib h   If there is a hit  you have Xlib h   If not install it using sudo apt-get install libx11-dev  and you are good to go

User · Answer

Andrew White s answer is sufficient to get you moving  Here s a step-by-step for beginners   A simple get started   Create test cpp   This will be built and run to verify you got things set up right     include  lt X11 Xlib h gt   include  lt unistd h gt    main          Open a display    Display  d   XOpenDisplay 0      if   d                  Create the window       Window w   XCreateWindow d  DefaultRootWindow d   0  0  200                     100  0  CopyFromParent  CopyFromParent                     CopyFromParent  0  0             Show the window       XMapWindow d  w         XFlush d             Sleep long enough to see the window        sleep 10           return 0       Source  LinuxGazette   Try  g   test cpp -lX11 If it builds to a out  try running it  If you see a simple window drawn  you have the necessary libraries  and some other root problem is afoot   If your response is       test cpp 1 22  fatal error  X11 Xlib h  No such file or directory     compilation terminated    you need to install X11 development libraries  sudo apt-get install libx11-dev  Retry g   test cpp -lX11  If it works  you re golden   Tested using a fresh install of libX11-dev 2 3a1 5 0-1 i386 deb

User · Answer

A quick search using     apt search Xlib h   Turns up the package libx11-dev but you shouldn t need this for pure OpenGL programming  What tutorial are you using   You can add Xlib h to your system by running the following     sudo apt install libx11-dev

[linux] X11/Xlib.h not found in Ubuntu

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